Alarm clock



FIG. 1 is a top front perspective view of an alarm clock showing my new design.

FIG. 2 is a front view of the alarm clock.

FIG. 3 is a rear view of the alarm clock.

FIG. 4 is a left side view.

FIG. 5 is a right side view.

FIG. 6 is a top view; and,

FIG. 7 is a bottom view.

The broken lines shown in FIGS. 1, 2 and 3 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an alarm clock, as shown and described. 